EP3206928A1 - Verfahren zum ermitteln einer fahrtreichweite eines kraftfahrzeugs und kraftfahrzeug - Google Patents
Verfahren zum ermitteln einer fahrtreichweite eines kraftfahrzeugs und kraftfahrzeugInfo
- Publication number
- EP3206928A1 EP3206928A1 EP16794304.2A EP16794304A EP3206928A1 EP 3206928 A1 EP3206928 A1 EP 3206928A1 EP 16794304 A EP16794304 A EP 16794304A EP 3206928 A1 EP3206928 A1 EP 3206928A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vehicle
- parameter value
- motor vehicle
- weather parameter
- determining
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 42
- 230000001419 dependent effect Effects 0.000 claims abstract description 33
- 238000011156 evaluation Methods 0.000 claims description 24
- 238000001514 detection method Methods 0.000 claims description 12
- 238000004378 air conditioning Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 5
- 238000013459 approach Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 description 10
- 230000006870 function Effects 0.000 description 9
- 230000007613 environmental effect Effects 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000012937 correction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/12—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to parameters of the vehicle itself, e.g. tyre models
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
- B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
- B60K35/28—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor characterised by the type of the output information, e.g. video entertainment or vehicle dynamics information; characterised by the purpose of the output information, e.g. for attracting the attention of the driver
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/02—Registering or indicating driving, working, idle, or waiting time only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
- B60K2360/16—Type of output information
- B60K2360/169—Remaining operating distance or charge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/10—Vehicle control parameters
- B60L2240/34—Cabin temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/60—Navigation input
- B60L2240/66—Ambient conditions
- B60L2240/662—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2260/00—Operating Modes
- B60L2260/40—Control modes
- B60L2260/50—Control modes by future state prediction
- B60L2260/52—Control modes by future state prediction drive range estimation, e.g. of estimation of available travel distance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/30—Auxiliary equipments
- B60W2510/305—Power absorbed by auxiliaries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2555/00—Input parameters relating to exterior conditions, not covered by groups B60W2552/00, B60W2554/00
- B60W2555/20—Ambient conditions, e.g. wind or rain
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2556/00—Input parameters relating to data
- B60W2556/20—Data confidence level
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2556/00—Input parameters relating to data
- B60W2556/45—External transmission of data to or from the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2556/00—Input parameters relating to data
- B60W2556/45—External transmission of data to or from the vehicle
- B60W2556/65—Data transmitted between vehicles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/84—Data processing systems or methods, management, administration
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Definitions
- the invention relates to a method for determining a driving range of a motor vehicle according to the preamble of patent claim 1 and to a motor vehicle according to the preamble of patent claim 8.
- the invention further relates to a method for determining a driving range of a motor vehicle according to the preamble of patent claim 9.
- a maximum available driving range of motor vehicles depends inter alia on the environmental conditions of the motor vehicle.
- driving range of the motor vehicle is meant in particular a remaining amount of residual energy, such as, for example, an amount of fuel in a motor vehicle having an internal combustion engine or an energy stored in a battery of an electric motor vehicle. Since the ambient conditions can change continuously depending on the position of the motor vehicle or the weather, the previously determined driving range can also change accordingly.
- DE 10 2009 048 821 A1 proposes a method for determining the range of a vehicle having an energy store for driving energy supply.
- the method takes into account two different parameters.
- One of the two parameters characterizes a state quantity of the energy store.
- the other parameter is obtained from information concerning, among other things, the weather.
- DE 10 2014 204 308 A1 discloses a method for estimating the range of a vehicle with an electronic drive.
- the range estimation is based on an energy consumption model of the vehicle, an amount of energy available to the vehicle in an energy store, and a road database.
- the range estimate is made for a route planned by the vehicle, taking into account current location-related environmental data along the planned route.
- DE 10 2013 225 563 A1 describes a method for monitoring at least one sensor of a vehicle. In the method, measured values of the sensor are compared with measured values of at least one reference vehicle.
- DE 10 201 1 1 16 1 15 A1 discloses a method for determining a range of a vehicle, which comprises an electric motor for driving.
- the object of the present invention is to provide a method which determines a driving range of a motor vehicle particularly reliably.
- the invention is based on the finding that the data obtained from a server in the prior art can be improved.
- a method for determining a driving range of a motor vehicle receives off-vehicle data.
- the off-vehicle data include at least one weather parameter value.
- a vehicle-dependent parameter value is determined as a function of the vehicle-external data.
- the driving range of the motor vehicle is determined.
- the method is characterized in that the vehicle external data are obtained from at least one other motor vehicle.
- the received vehicle-external data are checked before determining the vehicle-dependent parameter value by means of a confidence estimate.
- a confidence estimate is preferably to be understood as a probability calculation which implies a confidence tervall considered.
- a confidence interval is an interval from the statistic that indicates the precision of the estimation of the position of a parameter.
- the vehicle-external data of the several other motor vehicles are subjected to the confidence estimate.
- the confidence estimate takes into account in each case a travel time of the further motor vehicle of the several further motor vehicles and / or a minimum number of the several further motor vehicles.
- the off-board data can be estimated to be sufficiently reliable by the confidence estimate.
- the confidence estimation can thus be used to determine whether or not the captured off-vehicle data lies within the confidence interval.
- the vehicle-external data can be selected by the confidence estimate.
- the acquired data is often inaccurate because the coverage area of the server device usually refers to a larger area and the server device can not thereby provide location-specific information.
- the vehicle-external data can be transmitted to the motor vehicle from the further motor vehicle via a car-to-car communication.
- a car-to-car communication means the exchange of information and / or data ten, in this case of vehicle external data, between the other motor vehicle and the motor vehicle.
- Car-to-car communication takes place, for example, via a WLAN standard or Wifi standard.
- the motor vehicle can receive the vehicle-external data from the at least one further motor vehicle in an environment of the motor vehicle, in particular within a radius of between 5 m and 20 km.
- vehicle outside is meant in particular that such data relate to a value of an environment of the motor vehicle.
- the vehicle-external data are used to determine the vehicle-dependent parameter value.
- vehicle-dependent is meant in particular that such a parameter value relates to a value of the motor vehicle.
- An embodiment of the invention provides that as the vehicle-dependent parameter value, an energy requirement per section and / or per unit time of the motor vehicle, in particular for cooling and / or air conditioning, is determined.
- the energy requirement for cooling includes, for example, the power that is applied to cool an engine and / or other motor vehicle components during operation of the motor vehicle.
- the energy requirement for air conditioning includes, for example, the power that is applied to operate an air conditioning system of the motor vehicle for air conditioning a passenger compartment of the motor vehicle during operation of the motor vehicle.
- a power requirement of the thermal management of the motor vehicle can be determined as a function of the vehicle-dependent parameter value.
- the weather parameter value characterizes an ambient temperature.
- Weather parameter value is to be understood in particular as meaning a value which describes a state of the atmosphere in the environment of the motor vehicle.
- ambient temperature is meant in particular a temperature in an environment of the motor vehicle.
- environment is preferably meant a space or area surrounding which the motor vehicle.
- the weather parameter value may preferably also include a wind force and / or a humidity in the surroundings of the motor vehicle.
- a sensor of the further motor vehicle can detect an ambient temperature and transmit it via car-to-car Communicate communication to the motor vehicle. Since the weather parameter value relates to a direct environment of the motor vehicle, a driving range can be determined in a particularly simple and reliable manner.
- the vehicle-external data comprise at least one energy requirement of the further motor vehicle per distance unit and / or per unit of time.
- the energy requirement may include a performance prediction of a thermal management of the further motor vehicle.
- power prediction of the thermal management is meant in particular an energy requirement for cooling and / or for air conditioning of the further motor vehicle.
- the further motor vehicle which is preferably located in an environment of the motor vehicle, approximately the same ambient conditions, such as, for example, the ambient temperature, can prevail, as for the motor vehicle.
- the further motor vehicle can derive its energy requirement from ambient conditions, which are detected by an in-vehicle sensor system of the further motor vehicle.
- the further motor vehicle may for this purpose preferably have a temperature sensor for detecting an ambient temperature.
- the further motor vehicle may have a device which is set up to determine an energy requirement per unit of time and / or per section of road as a function of the detected temperature and to transmit this value of the energy requirement to the motor vehicle.
- the vehicle-external data can still be obtained from a server device.
- the server device may be, for example, a server device of a measuring station, in particular a weather station.
- the weather station may capture and provide current and / or future weather information.
- Current and / or future weather data may also be transmitted via a server device. Internet.
- the data from the server device is preferably updated continuously, ie at regular intervals.
- data relating to at least one further motor vehicle can therefore be taken into account by the data from a server device. Thereby, the accuracy of the data can be increased and thus the reliability of the determination of the driving range can be increased.
- a further embodiment of the invention provides that after determining the driving range of the motor vehicle depending on the vehicle-dependent parameter value, a current weather parameter value corresponding to the weather parameter value is detected in an environment of the motor vehicle, a difference value being determined between the detected current weather parameter value and the weather parameter value and the weather parameter value is adjusted to the detected current weather parameter value if the difference value exceeds a predetermined threshold.
- a difference value is meant in particular the value which results from a subtraction from the weather parameter value and the current weather parameter value. If the determined difference value is greater than a predetermined difference value, that is to say a threshold value, the weather parameter value is preferably adjusted to the current parameter value.
- the current weather parameter value can thus preferably be used or used to calibrate the weather parameter value.
- the current weather parameter value is detected by a detection device of the motor vehicle, the current weather parameter value comprising a temperature.
- the detection device may be, for example, a temperature sensor.
- a weather parameter value can be detected in a direct environment of the motor vehicle.
- the temperature measured with the temperature sensor can be used for the long-term fine correction of the weather parameter value and thus the driving range.
- it can be observed to what extent the current weather parameter value detected by the detection device of the motor vehicle approaches the weather parameter value of the recorded vehicle-external data.
- the invention also includes a motor vehicle.
- the motor vehicle is preferably designed as an electric vehicle.
- the motor vehicle has an catching device for receiving off-vehicle data, wherein the vehicle external data comprise at least one weather parameter value.
- the motor vehicle comprises an evaluation device, which is set up to determine a vehicle-dependent parameter value as a function of the vehicle-external data.
- the evaluation device is further configured to determine a travel range of the motor vehicle as a function of the vehicle-dependent parameter value.
- the vehicle external data are provided by at least one further motor vehicle.
- the evaluation device is further configured to check the received vehicle-external data before determining the vehicle-dependent parameter value by means of a confidence estimate, the confidence estimate taking into account a travel time of the further motor vehicle of the several further motor vehicles and / or a minimum number of the several further motor vehicles.
- another method for determining a driving range of a motor vehicle is provided.
- at least one weather parameter value is received.
- a vehicle-dependent parameter value is determined.
- the driving range of the motor vehicle is determined.
- the method is characterized in that a current weather parameter value corresponding to the weather parameter value is detected in an environment of the motor vehicle and a difference value between the detected the current weather parameter value and the weather parameter value.
- the weather parameter value is adjusted to the detected current weather parameter value when the difference value exceeds a predetermined threshold to check to what extent the corresponding current weather parameter value approaches the received weather parameter value.
- FIGURE shows a schematic block diagram of the components and communication paths involved in carrying out a method according to the invention.
- the figure shows a motor vehicle 10.
- the motor vehicle 10 may be a motor vehicle, in particular a passenger car.
- the motor vehicle 10 comprises a receiving device 12, an acquisition device 14 and an evaluation device 16.
- the receiving device 12 and the detection device 14 are each coupled to the evaluation device 16.
- coupled is here meant in particular that the receiving device 12 and the detection device 14 are signal technology connected via a data link to the evaluation device 16.
- the receiving device 12 is configured to receive data and to transmit it to the evaluation device 16.
- the receiving device 12 may query external data from at least one further motor vehicle 18 and / or a server device 20.
- the vehicle external data can also be transmitted by several other motor vehicles 18, i.
- Each further motor vehicle 18 provides vehicle-external data.
- the vehicle-external data include, for example, a weather parameter value, such as a temperature in an environment of the motor vehicle 10 and / or the further motor vehicle 18 and the other motor vehicles 18, respectively.
- the server device 20 can be, for example, a server device of a measuring station, in particular a weather station.
- the weather station may capture and provide current and / or future weather information.
- the receiving device 12 of the motor vehicle 10 can transmit, for example, a current position of the motor vehicle 10 to the server device 20.
- the server device 20 can transmit a location-specific temperature value as the weather parameter value on the basis of the current position or the location of the motor vehicle 10.
- the data transmission of the vehicle-external data between the server device 20 and the receiving device 12 takes place, for example, via known mobile radio standards for data transmission.
- the data transmission between the receiving device 12 of the motor vehicle 10 and the further motor vehicle 18 takes place, for example, via a WLAN standard or Wifi standard.
- the further motor vehicle 18 may have a further detection device (not shown in the figure) for detecting a weather parameter value and / or the Weather parameter value received from the server device 20 and transmit to the motor vehicle 10.
- the further detection device can also be designed as a sensor, in particular as a temperature sensor.
- the further motor vehicle 18, which communicates with the motor vehicle 10 can thus detect, for example by means of the temperature sensor, a temperature and transmit it to the motor vehicle 10, which receives the temperature value by the receiving device 12 and forwards it to the evaluation device 16.
- the evaluation device 16 may be, for example, a control device, which is further coupled with suitable memory units and / or communication devices and / or navigation systems and the like via suitable bus systems.
- the evaluation device 16 is set up to determine a vehicle-dependent parameter value as a function of the vehicle-external data. Furthermore, the evaluation device 16 is set up to determine a driving range of the motor vehicle 10 as a function of the vehicle-dependent parameter value. If vehicle-external data are obtained from a plurality of the further motor vehicles 18, then the evaluation device 16 can first perform a confidence estimation before determining the vehicle-dependent parameter value. If the vehicle-external data is, for example, the temperature value provided by the further motor vehicle 18, then the evaluation device 16 can calculate the energy requirement per unit time, for example for air conditioning of the passenger compartment, on the basis of this temperature value. On the basis of the calculated energy requirement, the evaluation device 16 can then calculate or estimate a travel range of the motor vehicle 10.
- the determined travel range can be transmitted by the evaluation device 16, for example, to a navigation device of the motor vehicle 10 and displayed on a display device of the navigation device to a driver of the motor vehicle 10.
- the evaluation device 16 can determine, for example, a temperature interval as the confidence interval within which a current ambient temperature lies. Only the temperature values are then taken into account by the evaluation device 16, which are within this temperature interval. For example, if an ambient temperature at 25 ° C, the temperature interval may have an interval width of 20 ° C to 30 ° C. If, for example, a temperature value of 26 ° C. is transmitted by one of the other motor vehicles 18, this is taken into account by the evaluation device 16 for determining the vehicle-dependent parameter value. If a temperature value of 15 ° C.
- the evaluation device 16 can form an average value from the data obtained from the further motor vehicles 18 and determine therefrom the vehicle-dependent parameter value.
- the maximum available range of electric vehicles depends heavily on the environmental conditions and can thus often change abruptly. If, for example, an electric car is in the cool garage at an outside temperature of 30 ° C in the summer, the vehicle will start from a high range. As soon as the car drives out of the garage, the real energy demand for the permanent cooling of the motor vehicle becomes visible and the predicted high range decreases abruptly. In such situations, the customer should be informed to explain the sudden range change due to environmental conditions.
- the information as to whether the environmental conditions have changed abruptly is determined by observing the temperature change and the line requirement. If both the temperature gradient and the gradient of the power requirement are sufficiently large, a change in the environmental conditions is assumed. The two parameters must be observed over sufficient time, since the temperature sensor is installed protected and thus reduces the speed of change.
- a disadvantage of the current method is the low reliability, since temperature gradients also occur in other contexts. The currently used algorithm can only be reliably used in winter in cool temperatures, in summer too many misdetections are caused. Another disadvantage is the observation of data over a longer period of time (about 2 minutes). As a result, the customer gets delayed the information about this time and thus the reference to the garage for the customer is not necessarily available.
- the new method uses mainly current and future weather information that is accessible online (for example, via Connect services) and that comes from reliable measurement stations. Both temperature data and power management performance estimates can also come from other vehicles via car-to-car communication. The own vehicle sensors additionally serve to fine-tune the estimate.
- the basis for the range estimation is the actual outside temperature from the internet or via car-to-car communication.
- performance predictions received via car-to-car communication are used for the thermal management of other vehicles when these vehicles have been running long enough.
- the predicted information based on the external information of the other motorists
- the vehicle must already be validated or corrected by the vehicle's own sensors of the other motor vehicles so that the information is sufficiently reliable. This requires a minimum number of vehicles.
- the temperature measured with its own vehicle sensors is then used for long-term fine correction of the range prediction. For this purpose, it is observed to what extent the temperature measured by the vehicle and thus the power requirement for thermal management approximates to the value previously predicted with external information. If larger deviations permanently occur, the estimate must be corrected from external information.
- the range prediction can be used purely on vehicle sensor data as a fallback solution.
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Automation & Control Theory (AREA)
- Mathematical Physics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
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DE102015015743.4A DE102015015743B4 (de) | 2015-12-04 | 2015-12-04 | Verfahren zum Ermitteln einer Fahrtreichweite eines Kraftfahrzeugs und Kraftfahrzeug |
PCT/EP2016/077046 WO2017092989A1 (de) | 2015-12-04 | 2016-11-09 | Verfahren zum ermitteln einer fahrtreichweite eines kraftfahrzeugs und kraftfahrzeug |
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EP3206928A1 true EP3206928A1 (de) | 2017-08-23 |
EP3206928B1 EP3206928B1 (de) | 2022-09-28 |
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EP16794304.2A Active EP3206928B1 (de) | 2015-12-04 | 2016-11-09 | Verfahren zum ermitteln einer fahrtreichweite eines kraftfahrzeugs und kraftfahrzeug |
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US (1) | US10220855B2 (de) |
EP (1) | EP3206928B1 (de) |
CN (1) | CN108473141B (de) |
DE (1) | DE102015015743B4 (de) |
WO (1) | WO2017092989A1 (de) |
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JP6520902B2 (ja) * | 2016-12-14 | 2019-05-29 | トヨタ自動車株式会社 | コネクティッド車両 |
CN111216588B (zh) * | 2018-11-23 | 2023-01-13 | 北京嘀嘀无限科技发展有限公司 | 一种充电管理方法及装置 |
EP3670247A1 (de) * | 2018-12-20 | 2020-06-24 | Ningbo Geely Automobile Research & Development Co. Ltd. | System und verfahren zur vorbereitung eines fahrzeugs für eine reise |
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JPH04145811A (ja) * | 1990-10-01 | 1992-05-19 | Toyota Motor Corp | 電気自動車駆動装置 |
JP2001218303A (ja) * | 2000-01-31 | 2001-08-10 | Fuji Heavy Ind Ltd | 電気自動車の走行制御方法及び装置 |
JP4321648B2 (ja) * | 2007-11-08 | 2009-08-26 | トヨタ自動車株式会社 | ハイブリッド車およびその制御方法 |
DE102008002695A1 (de) * | 2008-06-26 | 2009-12-31 | Robert Bosch Gmbh | Verfahren zur Routenbestimmung in einem Navigationssystem und Navigationssystem |
KR100995907B1 (ko) * | 2008-12-03 | 2010-11-22 | 한국전기연구원 | 초전도 박막 선재를 이용한 원형 와이어의 제조방법 및 그 초전도 박막 선재를 이용한 원형 와이어 |
DE102009016869A1 (de) | 2009-04-08 | 2010-10-14 | Li-Tec Battery Gmbh | Verfahren zum Betreiben eines Fahrzeugs |
US20100138142A1 (en) | 2009-07-17 | 2010-06-03 | Karen Pease | Vehicle Range Finder |
CN201569469U (zh) * | 2009-09-24 | 2010-09-01 | 许高斌 | 数字电容式液位测量传感器 |
DE102009048821A1 (de) | 2009-10-09 | 2011-04-14 | Conti Temic Microelectronic Gmbh | Verfahren zur Reichweitenermittlung für Fahrzeuge, insbesondere Elektrofahrzeuge |
CN102069762A (zh) * | 2010-12-28 | 2011-05-25 | 奇瑞汽车股份有限公司 | 一种电动/混合动力汽车的can网络系统 |
DE102011108385B3 (de) | 2011-07-22 | 2012-06-28 | Audi Ag | Verfahren zum Bestimmen einer Fahrtreichweite eines Kraftwagens |
DE102011082375A1 (de) * | 2011-09-08 | 2013-03-14 | Robert Bosch Gmbh | Verfahren zum Entlasten eines Fahrers beim Führen eines Fahrzeuges |
DE102011116115B4 (de) * | 2011-10-15 | 2022-02-03 | Volkswagen Aktiengesellschaft | Vorrichtung für ein Fahrzeug |
KR101327057B1 (ko) * | 2011-12-05 | 2013-11-07 | 현대자동차주식회사 | 차량의 경제운전 안내시스템 |
US9020671B2 (en) * | 2012-02-20 | 2015-04-28 | GM Global Technology Operations LLC | Vehicle control using an estimated outside air temperature |
US8670877B2 (en) * | 2012-02-27 | 2014-03-11 | Ford Global Technologies, Llc | Method and apparatus for analyzing and optimizing fuel/energy consumption |
CN103381808B (zh) * | 2012-05-04 | 2018-02-23 | 福特环球技术公司 | 利用停止标志和交通灯检测增强燃料经济性和安全性的方法 |
JP5631367B2 (ja) * | 2012-08-09 | 2014-11-26 | 本田技研工業株式会社 | 経路探索装置 |
US20140214267A1 (en) * | 2013-01-25 | 2014-07-31 | Audi Ag | Predicting consumption and range of a vehicle based on collected route energy consumption data |
DE102013225563A1 (de) * | 2013-12-11 | 2015-06-11 | Robert Bosch Gmbh | Verfahren zur Überwachung eines Sensors eines Fahrzeugs |
US9162585B2 (en) * | 2014-01-21 | 2015-10-20 | GM Global Technology Operations LLC | Rechargeable energy storage system management for vehicles |
CN104859662B (zh) * | 2014-02-20 | 2019-07-19 | 福特全球技术公司 | 自主车辆中的故障处理 |
CN103915869B (zh) * | 2014-03-10 | 2016-04-27 | 贾英昊 | 一种基于移动设备的电动汽车智能充电系统及方法 |
DE102014204308A1 (de) * | 2014-03-10 | 2015-09-10 | Bayerische Motoren Werke Aktiengesellschaft | Reichweitenschätzung für Elektrofahrzeuge |
US9604641B2 (en) * | 2015-06-16 | 2017-03-28 | Honda Motor Co., Ltd. | System and method for providing vehicle collision avoidance at an intersection |
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2015
- 2015-12-04 DE DE102015015743.4A patent/DE102015015743B4/de active Active
-
2016
- 2016-11-09 WO PCT/EP2016/077046 patent/WO2017092989A1/de active Application Filing
- 2016-11-09 US US15/780,625 patent/US10220855B2/en active Active
- 2016-11-09 CN CN201680077910.7A patent/CN108473141B/zh active Active
- 2016-11-09 EP EP16794304.2A patent/EP3206928B1/de active Active
Also Published As
Publication number | Publication date |
---|---|
EP3206928B1 (de) | 2022-09-28 |
DE102015015743A1 (de) | 2017-06-08 |
DE102015015743B4 (de) | 2020-08-13 |
US20180354526A1 (en) | 2018-12-13 |
US10220855B2 (en) | 2019-03-05 |
CN108473141B (zh) | 2021-04-09 |
CN108473141A (zh) | 2018-08-31 |
WO2017092989A1 (de) | 2017-06-08 |
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